Cisco 4-Port Gigabit Ethernet Enhanced High-Speed WAN Interface Card (EHWIC) for ISR 1900/2900/3900 Series

Designed to elevate your Cisco Integrated Services Router (ISR) to a converged, secure, and high-performance networking platform, the Cisco 4-Port Gigabit Ethernet Enhanced High-Speed WAN Interface Card (EHWIC) delivers robust, scalable connectivity for today’s IP phones, wireless access points, and IP-based video cameras. This EHWIC is purpose-built to integrate seamlessly with Cisco ISR 1900, 2900, and 3900 series devices, providing a compact, single-platform solution that consolidates data, voice, and video on a secure, manageable network foundation. With four Gigabit Ethernet ports on a single module, you can deploy flexible LAN/WAN connections while leveraging the ISR’s built-in switching capabilities to simplify deployment and administration across the enterprise or branch office.

• Four Gigabit Ethernet ports on a single EHWIC — Deliver ample high-speed connectivity for IP phones, wireless access points, and IP cameras, enabling seamless convergence of voice, video, and data on one platform.
• Secure, integrated networking for converged IP communications — Leverage the Cisco ISR’s security features and traffic-handling capabilities to protect sensitive communications and ensure reliable delivery of real-time traffic such as VoIP and video.
• Single-platform simplicity with an integrated switch — Streamlines deployment by combining edge connectivity and switching within the same chassis, reducing hardware footprint and simplifying network management.
• Scalable, enterprise-grade performance — Each Gigabit Ethernet port supports speeds up to 1 Gbps, enabling scalable growth as bandwidth demands increase, while the ISR backplane preserves efficient routing and policy enforcement.
• Flexible deployment for branch and enterprise networks — Ideal for branch offices and small to mid-size enterprises requiring reliable WAN access, secure remote connectivity, and consolidated IP communications from a compact module.

Technical Details of Cisco 4-Port Gigabit Ethernet Enhanced High-Speed WAN Interface Card

• Module type: Enhanced High-Speed WAN Interface Card (EHWIC) designed for Cisco ISR platforms
• Ports: 4 x Gigabit Ethernet interfaces (10/100/1000 Mbps) on a single card
• Compatibility: Cisco ISR 1900, 2900, and 3900 Series routers
• Performance: Up to 1 Gbps data rate per port; aggregate throughput depends on router configuration, routing features, and network workload
• Architecture: PCI/slot-based EHWIC module that plugs into the ISR backplane, enabling a compact, integrated edge solution
• Management: Configurable via Cisco IOS; supports standard management protocols (SSH/Telnet, SNMP) for monitoring, control, and remote management
• Security and QoS capabilities: Leverages ISR security features, VPN support, and quality of service policies to prioritize real-time traffic and protect network resources
• Deployment considerations: Works in conjunction with the ISR’s integrated switch capabilities to consolidate data, voice, and video traffic on a single platform

how to install Cisco 4-Port Gigabit Ethernet Enhanced High-Speed WAN Interface Card

• Power down the Cisco ISR and disconnect all power sources and cables. Ground yourself to prevent electrostatic discharge and handle the EHWIC by its edges. Ensure you are working in a static-free environment.
• Remove the router cover or access panel as required by your ISR model to access the internal slot area. Identify the available EHWIC slot that matches the module's form factor and the ISR backplane layout.
• Carefully align the EHWIC with the slot and firmly insert it until it seats securely. Engage any latching mechanism or retention tab to lock the module in place. Confirm that the module is properly seated and that the ports are aligned with the front panel access.
• Reconnect the router chassis, power up the device, and allow the ISR to boot. Verify hardware recognition using appropriate IOS commands such as show inventory and show hw-module all to ensure the EHWIC is detected and operational.
• Enter configuration mode and configure the four Gigabit Ethernet interfaces (for example, interface GigabitEthernet0/0 through GigabitEthernet0/3). Assign IP addresses, set routing and QoS policies as needed, and enable any security features or VPN settings. Save the configuration and monitor the interfaces to confirm active links and proper operation.

Frequently asked questions

• What is the Cisco 4-Port Gigabit Ethernet EHWIC used for? It provides four Gigabit Ethernet connections on Cisco ISR 1900/2900/3900 series routers, enabling high-speed LAN/WAN connectivity for IP phones, wireless APs, and IP cameras while supporting converged IP communications on a secure, integrated platform.
• Which Cisco devices are compatible with this EHWIC? The module is designed specifically for Cisco ISR models in the 1900, 2900, and 3900 series, ensuring optimal integration with on-board services and features of those platforms.
• What performance can I expect from the ports? Each port supports up to 1 Gbps in typical operation, with actual throughput influenced by router configuration, routing decisions, and the overall traffic mix running on the ISR.
• Is this module hot-swappable? For most Cisco ISR modules, installation is performed with the device powered down to prevent damage and ensure proper seating. Always consult your device’s maintenance guide for model-specific guidance.
• What management capabilities are available? The EHWIC is managed via the Cisco IOS on the ISR, allowing standard management methods such as SSH, Telnet, SNMP, and CLI-based configuration, along with integration into existing network monitoring and policy systems.